Ink-saving device for intaglio printing and embossing presses



. F. WAITE.

INK SAVIN G DEVICE FOR INTAGLIO PRINTING AND EMBOSSING PRESSES.

APPLICATION FILED FEB. 11, I920. 1,351,545,

Patented Aug. 31, 1920.

extends across the machine at theunderside of the traveling paper 4 immediately in ad- Vance of the large paper-carrymg cylinder 5, while at the opposite or top side of the traveling paper 4 the side frames 1 of the press carry-a rock-shaft'6 provided with end bearings 7 carrying a member 8 which extends across-the machine and is formed with a longitudinal narrow groove or recess 9 for the entry thereintofof theoppositely situated scraper blade 3. One of the end bear ings 7 which carry the grooved member 8 is formed with an operating handle 10,

through the medium of which latter the said grooved member 8 is free to be rocked backward on its pivot 6 away from the scraper blade 3 into the position shown in full lines at Fig. 1 for facilitating the threading of the wiperepaper 4 or of being, rocked forward on its pivot 6 toward and over the said scraper blade 3 into the normal or' paperengaging position shown in dotted linesat Fig. 1 and in full lines at Fig.3.

When the parts are in the paper-engaging position shown at Fig. 3, the depth of the scraper blade 3 within the narrow groove or recess 90f the oppositely situated member 8 and the width'of the said narrow groove or recess 9 are suoh'asto cause the, paper 4 to be bent at a sharp angle into the narrow groove so as to keep the contact between the V scraper blade 3 and the paper 4 practically uniform'irrespective of the tension of the paper behind; in other words the entry and leaving'contact edges-of the narrow groove or recess 9 of the member 8 aresituated sufliciently below the engaging edge of the inserted scraper blade 3 as to cause the paper 4 to be bent within the said narrow groove or recess 9 to such an angle as to insure it being always kept taut whlle travel ing over the said scraper blade 3.

The pivoted member 8 is elastically held in the normal or paper-engaging position ,over the scraper blade 3 by means of a ten- J bearings 2, and each end bearing 2 is provided with a set screw 16 (see Fig. 3) adapted to bear against the underside of the pivoted member 8 forregulating the depth to which the scraper blade 3 shall enter the narrow groove or recess 9 of the said piv oted member 8.

A removably mounted tray 17 is provided beneath thescraperblade 3 for receiving wardly from the machine. a

' lVhat I claim as my invention and desire to secure by Letters Patent is I 1.111 ink saving devices of the scraper type for the recovery of ink from the wiping paper of intaglio printing an'd embossing presses; the combination with a scraper of the paper, of a member situated across the machine at the opposite sideof the paper and being formed with a longitudinal narrow groove or recess into which the scraper blade projects, and means for adjusting the position of the scraper blade to regulate the depth thereof in the groove or recess of the said member to cause the paper to be bent at an angle to an extent suflicient to keep the'contact between the scraper blade and thepaper practically uniform irrespective of the tension of the paper behind. V

2. Indnk saving devices of the scraper type for the recovery of ink from the wiping paper of intaglio printing and'embossing presses; the combination with a stationary scraper blade situated across the machine at one side of the paper, of a member pivotally mounted across the machine at the opposite side of the, paper so as to enable it'to be rocked backward on its pivot away from the stationary blade for facilitating the threading of the web of paper and being formed with a longitudinal narrow groove or recess into'which the scraper'blade normally projects, and a set screw adjustment for regulating the position of the scraper blade to determine the depth thereof in the the scraped off ink and conducting it out 7 blade situated across the machine at one side groove or recess of the said member to cause the paper to be bent at an angle to an extent 'sufiicient to keep the contact between the scraper blade and the paper practically uniform irrespective of the tension of the paper behind. r v

In witness whereof I have hereunto set my hand in the presence of two witnesses.

a FRED \VAITE. WVitnesses: f V i Y i Y ROBERT lVHYTE,

STANLEY REYNER. 

